2. Place 3 quarts water in a large pot and bring to a boil over high heat. Add the squash to the water, return to a boil, and cook for 6 minutes. The squash will turn a deeper orange. Drain it and set aside.

3. Melt the butter in the stockpot and add the oil. Add the onions and sauté over medium-low heat until translucent and limp, about 8 minutes, stirring to prevent browning. Add the warm squash and the buttermilk, eggs, thyme, bread crumbs, salt, pepper, 1/8 cup pumpkin seeds and 1 1/3 cups cheese. Blend with a wooden spoon or spatula until the ingredients are well combined.

4. Spread the mixture evenly in a 9x13" baking dish. Bake for 45 minutes. Remove from the oven and sprinkle with the remaining 1/8 cup pumpkin seeds and 2/3 cup cheese. Bake 15 minutes more. Remove from the oven and serve immediately.